Another self level inactive question

[Roadkill]

Socket, that's exactly what happened to me. That's why I threw that question in there. The TPMS system is monitored by the EHC2 module (Electronic Height Control 2 Axle) and when the module faults, it can through the TPMS light. Mine would happen only after 45 minutes or so of sustained highway driving. After 3 months of pulling my hair out, killcrap (member on this site) said to look at the EHC2 module. Sure enough, he was right. It's pricey, $640, but it fixed the problem. Thank god for aftermarket warranties.

[sockethead]

Originally Posted by Roadkill

Socket, that's exactly what happened to me. That's why I threw that question in there. The TPMS system is monitored by the EHC2 module (Electronic Height Control 2 Axle) and when the module faults, it can through the TPMS light. Mine would happen only after 45 minutes or so of sustained highway driving. After 3 months of pulling my hair out, killcrap (member on this site) said to look at the EHC2 module. Sure enough, he was right. It's pricey, $640, but it fixed the problem. Thank god for aftermarket warranties.

Yea we had a feeling it would turn out to be the module...damn it! We've already replaced the struts, rear bags, the compressor and the front right height sensor... they were all bad... not just parts swapping. I'll have to see if our aftermarket warranty will cover it. Thanks for the info. I really appreciate it

[MANGO]

Originally Posted by Roadkill

Socket, that's exactly what happened to me. That's why I threw that question in there. The TPMS system is monitored by the EHC2 module (Electronic Height Control 2 Axle) and when the module faults, it can through the TPMS light. Mine would happen only after 45 minutes or so of sustained highway driving. After 3 months of pulling my hair out, killcrap (member on this site) said to look at the EHC2 module. Sure enough, he was right. It's pricey, $640, but it fixed the problem. Thank god for aftermarket warranties.

This very exact same thing just happened to me a week ago and I'm dealing with it now. It involves the same TPMS condition after 45 minutes of driving with the combination SUSP INACTIVE message.

I have a 2006 4.8IS, does that mean I have the EHC2? I'm looking at the diagram but it looks like I have the EHC1 because I have the pumpkin shaped Encapsulated Air Supply System. I am confused. What do I have?

According to Roadkill (which describes my exact situation with the TPMS and SUSP INACTIVE message) I should have the EHC2 based on his description above?
I've already pulled down the glove box if that's indeed where it is located and I ran into a plastic molded panel cover behind the glove box, is it behind this panel?

Also, for those who have replaced this module already, where did you get yours and is there a better alternative than the dealer?

BTW, already checked associated fuses front and back, they're all intact.



Thanks in advance everyone,
MANGO